Bought for use with a 5" HVAC dust collector tube from my woodshop. They are quite good for the finish, the body is solid with no bends. The Ends are long enough to keep the friction in the tube but I secured them with some aluminum tape. Overall a solid improvement over the plastic gates I've used.
Xiaomi Mi Robot Vacuum-Mop Essential Robot Vacuum Cleaner, white
284 Review
Dyson V8 Absolute: The Ultimate Cordless Vacuum for Effortless Cleaning
142 Review
Robot vacuum cleaner Roborock S5 MAX Global, black
298 Review
Xiaomi Mi Robot Vacuum Cleaner 1S Global Robot Vacuum Cleaner, white
389 Review